GB1439181A - Process for moulding shell mould - Google Patents

Process for moulding shell mould

Info

Publication number
GB1439181A
GB1439181A GB2438973A GB2438973A GB1439181A GB 1439181 A GB1439181 A GB 1439181A GB 2438973 A GB2438973 A GB 2438973A GB 2438973 A GB2438973 A GB 2438973A GB 1439181 A GB1439181 A GB 1439181A
Authority
GB
United Kingdom
Prior art keywords
pattern
sand
film
mould
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2438973A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Publication of GB1439181A publication Critical patent/GB1439181A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Casting Devices For Molds (AREA)

Abstract

1439181 Making shell moulds KOMATSU SEISAKUSHO KK 22 May 1973 [22 May 1972] 24389/73 Heading B3F A method of making a shell mould comprises applying a facing agent containing a powdered refractory and a binder comprising novolaktype phenol resin admixed with vinyl acetate resin to the surface of a metallic pattern (1) heated to an elevated temperature to form a film (3) of said facing agent, applying a shell mould sand on to the film prior to said film being cured completely, removing excess sand and calcining the mould thus formed. The powdered refractory may consist of alumina, zircon, silica or magnesia and preferably has a particle size in the range 350 to 450 mesh Tyler Standard Sieve. Iron sand may be mixed with the powdered refractory. Copolymers of vinyl acetate may be used. The metallic pattern (1) is placed on a tank (4) containing the facing agent (2) and the latter blown on to the surface of the pattern to form a film (3). The pattern is now turned over and the tank (4) replaced by a frame (6) into which shell sand is charged. After a given time, the frame (6) and pattern (1) are inverted so that any sand which has not adhered to the film falls away and the thus formed mould (8) together with the pattern (1) calcined at a temperature between 200‹ and 300‹ C. prior to separating the mould from the pattern.
GB2438973A 1972-05-22 1973-05-22 Process for moulding shell mould Expired GB1439181A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47049892A JPS5110815B2 (en) 1972-05-22 1972-05-22

Publications (1)

Publication Number Publication Date
GB1439181A true GB1439181A (en) 1976-06-09

Family

ID=12843669

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2438973A Expired GB1439181A (en) 1972-05-22 1973-05-22 Process for moulding shell mould
GB523376A Expired GB1439182A (en) 1972-05-22 1973-05-22 Facing agent for moulding a shell mould

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB523376A Expired GB1439182A (en) 1972-05-22 1973-05-22 Facing agent for moulding a shell mould

Country Status (3)

Country Link
JP (1) JPS5110815B2 (en)
DE (1) DE2326040C3 (en)
GB (2) GB1439181A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518031A (en) * 1981-02-24 1985-05-21 Kabushiki Kaisha Komatsu Seisakusho Method for making molds
CN111872330A (en) * 2020-06-17 2020-11-03 南昌航空大学 Shell mould casting method adopting non-occupying coating

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618428U (en) * 1979-07-20 1981-02-18
JPH0688836B2 (en) * 1988-04-18 1994-11-09 株式会社富士セラミックス Pyroelectric porcelain material and manufacturing method thereof
JP5784484B2 (en) * 2011-12-28 2015-09-24 花王株式会社 Water-based coating agent composition
KR102179841B1 (en) * 2013-09-30 2020-11-17 히타치 긴조쿠 가부시키가이샤 Green sand mold and its production method, and production method of iron-based casting
WO2015147069A1 (en) * 2014-03-26 2015-10-01 日立金属株式会社 Green sand for casting of steel castings, method for producing same, and method for producing metal castings using said green sand

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518031A (en) * 1981-02-24 1985-05-21 Kabushiki Kaisha Komatsu Seisakusho Method for making molds
CN111872330A (en) * 2020-06-17 2020-11-03 南昌航空大学 Shell mould casting method adopting non-occupying coating

Also Published As

Publication number Publication date
JPS5110815B2 (en) 1976-04-07
DE2326040B2 (en) 1978-01-26
DE2326040C3 (en) 1978-10-12
DE2326040A1 (en) 1973-12-20
GB1439182A (en) 1976-06-09
JPS4914317A (en) 1974-02-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920522